/*

* Simd Library (http://ermig1979.github.io/Simd).

*

* Copyright (c) 2011-2017 Yermalayeu Ihar.

*

* Permission is hereby granted, free of charge, to any person obtaining a copy

* of this software and associated documentation files (the "Software"), to deal

* in the Software without restriction, including without limitation the rights

* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

* copies of the Software, and to permit persons to whom the Software is

* furnished to do so, subject to the following conditions:

*

* The above copyright notice and this permission notice shall be included in

* all copies or substantial portions of the Software.

*

* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

* SOFTWARE.

*/

#include "Simd/SimdDefs.h"

namespace Simd

{

    namespace Base

    {

        void Copy(const uint8_t * src, size_t srcStride, size_t width, size_t height, size_t pixelSize, uint8_t * dst, size_t dstStride)

        {

            size_t rowSize = width*pixelSize;

            for (size_t row = 0; row < height; ++row)

            {

                memcpy(dst, src, rowSize);

                src += srcStride;

                dst += dstStride;

            }

        }

        void CopyFrame(const uint8_t * src, size_t srcStride, size_t width, size_t height, size_t pixelSize,

            size_t frameLeft, size_t frameTop, size_t frameRight, size_t frameBottom, uint8_t * dst, size_t dstStride)

        {

            if (frameTop > frameBottom || frameBottom > height || frameLeft > frameRight || frameRight > width)

                return;

            if (frameTop > 0)

            {

                size_t srcOffset = 0;

                size_t dstOffset = 0;

                size_t size = width*pixelSize;

                for (size_t row = 0; row < frameTop; ++row)

                {

                    memcpy(dst + dstOffset, src + srcOffset, size);

                    srcOffset += srcStride;

                    dstOffset += dstStride;

                }

            }

            if (frameBottom < height)

            {

                size_t srcOffset = frameBottom*srcStride;

                size_t dstOffset = frameBottom*dstStride;

                size_t size = width*pixelSize;

                for (size_t row = frameBottom; row < height; ++row)

                {

                    memcpy(dst + dstOffset, src + srcOffset, size);

                    srcOffset += srcStride;

                    dstOffset += dstStride;

                }

            }

            if (frameLeft > 0)

            {

                size_t srcOffset = frameTop*srcStride;

                size_t dstOffset = frameTop*dstStride;

                size_t size = frameLeft*pixelSize;

                for (size_t row = frameTop; row < frameBottom; ++row)

                {

                    memcpy(dst + dstOffset, src + srcOffset, size);

                    srcOffset += srcStride;

                    dstOffset += dstStride;

                }

            }

            if (frameRight < width)

            {

                size_t srcOffset = frameTop*srcStride + frameRight*pixelSize;

                size_t dstOffset = frameTop*dstStride + frameRight*pixelSize;

                size_t size = (width - frameRight)*pixelSize;

                for (size_t row = frameTop; row < frameBottom; ++row)

                {

                    memcpy(dst + dstOffset, src + srcOffset, size);

                    srcOffset += srcStride;

                    dstOffset += dstStride;

                }

            }

        }

    }

}